Acoustic panel



FIG. 1 is a side perspective view of a design of the acoustic panel;

FIG. 2 is a top plan view of the design of FIG. 1;

FIG. 3 is a bottom plan view of the design of FIG. 1;

FIG. 4 is a first side elevation view of the design of FIG. 1;

FIG. 5 is a second side elevation view of the design of FIG. 1;

FIG. 6 is a front elevation view of the design of FIG. 1; and,

FIG. 7 is a rear elevation view of the design of FIG. 1.

The features shown in broken lines depict environmental subject matter only and form no part of the claimed design. 

CLAIM We claim the ornamental design for an acoustic panel, as shown and described. 